Table 2. Comparison of the peak moment (MH, MK, and MA, N·m/kg) and absolute occurrence time (t, ms) (mean ± SD) in the hip, knee, and ankle joints in the sagittal plane during landings between pre- and post-fatigue conditions.
Protocols Fatigue MH1 t_MH1 MH2 tMH2* MK1* tMK1 MK2 tMK2 MK3 tMK3 MA1 tMA1 MA2* tMA2*
R-FP pre 8.9±2.2 35.6±11.0 2.0±1.0 99.9±18.9 2.0±0.7 17.3±3.5 2.5±0.5 53.7±16.0 2.3±0.5 82.8±34.6 1.6±0.5 18.4±5.9 1.5±0.4 87.3±22.7
post 9.2±2.3 32.6±10.5 2.1±0.8 99.5±19.8 2.2±0.7 19.7±6.1 2.4±0.6 57.2±17.6 2.4±0.6 90.4±45.5 1.5±0.9 17.6±7.2 1.4±0.4 81.5±15.5
SJ-FP pre 8.9±1.6 31.3±12.2 2.2±0.9 96.0±19.2 2.3±0.6 18.6±7.3 2.4±0.5 51.7±12.6 2.3±0.4 85.3±18.5 1.4±0.5 19.9±7.3 1.4±0.3 79.4±20.2
post 8.9±2.3 31.7±11.5 2.0±0.5 102.1±17.0 1.9±0.5 16.2±3.9 2.3±0.5 53.6±10.5 2.2±0.5 72.8±30.1 1.4±0.6 17.9±6.7 1.3±0.3 88.1±17.7
* Significant differences between pre- and post-fatigue conditions, with p < 0.05.
† Significant fatigue × protocol interaction effects, with p < 0.05. R-FP = fatigue protocol with constant speed running; SJ-FP = fatigue protocol with shuttle sprint plus vertical jump; pre = pre-fatigue; post = post-fatigue; MH1, MH2 = two typical peaks in the hip joint moment – time curve; t_MH1, t_MH2 = the absolute time of contact to MH1 and MH2; MK1, MK2, and MK3 = three typical peaks in the knee joint moment – time curve; t_MK1, t_MK2, t_MK3 = the absolute time of contact to MK1, MK2, and MK3; MA1,MA2 = two typical peaks in the ankle joint moment – time curve; t_MA1, t_MA2 = the absolute time of contact to MA1 and MA2.